Mean Sea Level Trends
500-091 Chennai/Madras, India

The mean sea level trend is 0.32 millimeters/year with a 95% confidence interval of +/- 0.37 mm/yr based on monthly mean sea level data from
1916 to 2008 which is equivalent to a change of 0.10 feet in 100 years.

[Metadata: Based on high and low waters for 1952-1956 . Apparent correlation with the Southern Oscillation Index]

If present, solid vertical lines indicate times of any major earthquakes in the vicinity of the station and dashed vertical lines
bracket any periods of questionable data or datum shifts. Source data and additional metadata are noted below the plot.